DE2550361A1 - DEVICE ON DRILLING TUBES FOR OPERATING PIPE SECTIONS - Google Patents

Description

PATENT LAWYERS .. ,, .. -, _c - K.SOSlT, Diploma! / b h U J O 1

pWng · Dipl.-YAtsch.-lB5. 8! 3 STASNSSlS at Jiüschen - J & SEAWAY 12

Lamb Industries, Inc.

Highway 90 East, Lafayette, Louisiana 70501

United States

"Device on drilling rigs for the actuation of pipe part lengths

This invention "relates to a tower-mounted device, appropriately for manipulating pipe part lengths in one or from one or more rod racks arranged in their vicinity; in particular, "this invention relates to such a derrick-mounted Device with a pipe manipulator and a pipe gripping hand rotatably attached to one end.

When drilling an oil hole with a drill rig with a lathe chisel mass with the bore extending deeper into the ground, additional partial lengths of the drill rod from time to time at the top of the drill string. In the same way, at the end of the drilling process when pulling out the Drill rod can be separated from the borehole gradually partial lengths of the drill rod from the upper end of the drill string. At the Attaching a part length of the drill rod to the drill string, the part length is supported vertically with a jumping jack who Usually in a lifting tower mounted above a turntable

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ORIGINAL INSPECTED

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is provided, with which the drill string and thus a turning tool attached to the lower end of the drill string rotates v / earth. A similar support for the boring bar in the vertical takes place when separating the rotating part lengths. The vertical supported part length generally has a very considerable weight.

Originally, the hanging head parts were used to attach to the upper end of the pipe string protruding above the turntable brought into position by hand and in the same // hand disengaged from the drill string and to a bearing point brought. With regard to the safety of the workforce, in particular in connection with work carried out on watercraft and with offshore oil rigs where such manual work cannot prove to be harmless, various devices have been developed to a length of pipe part supported vertically in a drilling rig inevitably to hold and move and controlled both for connecting to and later after the separation of the pipe section length from the drill string. - -

The proposed devices are generally for installation proposed on the bottom of the drilling rig. Such devices are able to grasp a stirring groove length, convert them into the desired Rotate position and finally position in position for connection to the drill string. Typical examples of this Devices mounted to the bottom of drilling rigs are disclosed in U.S. Patent 2,450,934 issued to Calhoun and in U.S. Pat American patents 3,371,728 issued to G-lobaJk 'Marine and 3,477,527. But it still happens Problem with properly grasping and positioning the upper part of the pipe length.

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Pipe section lengths that are later to be attached to the pipe string or that have been separated from the pipe string are typically shown in a raking platform attached to the upper part of the derrick. A previous one for manipulating the boring bar Apparatus proposed into or out of the calculator is for example in the American patent issued to Galhoun 2,416,815. This patent describes a device with pipe gripping jaws attached to one arm, with which the withdrawal the gripping jaws and thus the release of the gripped pipe is, for which the whole unit is mounted on the derrick rubbed the computing platform.

However, this device has certain inherent limitations, insofar as the pipe gripping jaws only act to release or grip the pipe length and the gripping jaws . the head part of the device are unable to perform a movement independent of the arm or body of the device in order to provide the desired adaptability in the orientation and manipulation of the tubular rod. If these disadvantages are disregarded, the method of the device described in the Galhoun-Pstent is not entirely flawless.

Another bohrturrnmontierte apparatus for manipulating pipe part lengths into or out of a computing stage is performing manufactured by Bryon Jackson, Inc., for example, in the combined Ka talog of Au sr üstu nts and D ienstl eistu nts for oil fields, Issue 31, 1974- 75, Volume 1, pages 320-821. This device comprises an upper computing device with an associated computing platform, the computing device consisting of a carriage which is moved on rails across the derrick, an arm which is force-driven through the carriage in the direction to and from the axis of the borehole and one at the end hand attached to the arm.

This device is similar to the Calhoun device rather complicated and does not allow independent oriented rotational movement of the hand. The whole orientation movement of the hand is associated with a movement of the whole arm on a cart. Because of the complexity of this device, it is very difficult to modify a derrick in the field to suit the attachment of the device. This device is therefore not complete either perfect.

Based on the above, it is an essential feature of the invention a rig-mounted device for manipulating pipe sections in one or from one or more rod racks to create, this facility taking the power of the prior art described above resolves by providing a Rohrmanipulierarm which is used to move is formed along a single predetermined line with a pipe gripping hand rotatably mounted thereon capable of the pipe is to be gripped at an angle to the line of movement of the arm and delivered.

It is such another feature of the present invention a rig-mounted device for manipulating lengths of pipe into or out of one or more in their vicinity arranged rod rake to create, wherein the pipe manipulating arm is telescopic and actuating means for Aus and retracting the telescopic arm, as well as actuating means for rotating the tubular gripping hand relative to the telescopic arm.

It is yet another feature of the present invention a pipe grasping hand for use in connection with the device for manipulating pipe lengths, the pipe gripping hand being rotatably attached to one end of an arm is, which can be moved along a single predetermined line in the vicinity of the pipe part lengths and actuating means for

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Closing or opening of the pipe gripping hand for grasping or walking away a length of pipe, as well as actuating means for rotating the pipe gripping hand relative to the arm.

Yet another feature of the present invention consists in such a device for manipulating lengths of tubing in one or from one or more rod racks in their mower, including a telescopic arm consisting of one A plurality of equiaxed telescopic elements and at least one hydraulic cylinder therein which is effective, the plurality the coaxial telescopic elements extend and retract.

Another feature of the present invention relates to such a derrick mounted device for manipulation of pipe part lengths in one or from one or more rod racks, whereby the device can simply be fixedly mounted in a derrick without the need for rails for the movement of the pipe manipulation arm, while the pipe gripping hand has access to the one or more rod racks located pipe rods is awarded.

Highly further features and advantages of the present invention will become apparent from the detailed description thereof below emerged.

The aforementioned features of the present invention and the advantages associated therewith result according to the invention with that a drilling tower-mounted device for the manipulation of pipe part lengths in one or from one or more rod racks in the vicinity of which is provided. Such a derrick-mounted device according to the invention comprises:

a pipe manipulating arm, made for movement along a single predetermined line; and

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a pipe gripping hand rotatably attached to one end of the arm, which are rotatable around the arm in an angular direction relative to the line of movement of the arm for gripping and dispensing pipe rods is arranged.

In a particular exemplary embodiment, the invention includes Rig-mounted equipment:

a telescopic arm consisting of a large number of equiaxed ■ telescopic elements;

Actuating means for extending and retracting each of the plurality of equiaxed telescopic members;

a pipe gripping hand, consisting of first and second pipe gripping jaws, rotatably attached to one end of the telescopic arm;

Actuating means for closing or opening the first and second pipe gripping jaws for gripping or releasing a length of pipe part, such means expediently from a double-acting hydraulic cylinder connected to the gripping hand insist to open and close the first and second gripping jaws when hydraulic pressure is applied; and

Actuating means for rotating the gripping hand relative to the telescopic arm, preferably a pair of hydraulic cylinders acting in opposite directions and a chain drive for connecting the gripping hand the telescopic arm.

According to one embodiment of the invention, the pipe gripping hand is rotatable at the end of the manipulating arm in order to grasp it and To position the delivery of pipe rods at the end of the rod rake. According to a second embodiment, means are provided the pipe gripping hand mn. extend at an angle to the pipe manipulation arm, with it the gripping hand. is able to rake everyone in the linkage located pipe rod to be able to reach.

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The device according to the invention can expediently next to a Linkage racks or between two linkage racks are arranged in order to thus in an expedient and efficient manner to enable the manipulation of pipe part lengths in or out of the same.

Other features of the invention, as well as others, are set out in US Pat subsequent description of preferred exemplary embodiments the invention explained in more detail with reference to the accompanying drawings.

In the drawings show:

Pig. 1 is a side view of an oil rig, schematically illustrates conventional equipment in use and the relationship of the device according to the invention to such conventional equipment;

Fig. 2 is a perspective view of the apparatus of the present invention illustrating the relationship of the "tower-mounted apparatus for manipulating drill rods to the computing platform; FIG.

3 shows a plan view of the device according to the invention, which is the ratio of the "derrick-mounted facility for the Manipulating drill rods to two rod rakes illustrated;

Pig. 4 a partial section through the device according to the invention, which illustrates a rotational movement of 180 ° of the gripping hand;

Pig. 5 is a partially sectioned plan view of FIG device according to the invention;

6 is an enlarged view of the gripping hand in Pig. 5, the illustrates the device for opening and closing the gripping hand;

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Fig. 7 is a partially sectioned side view of the device according to the invention;

8 shows a partial section through the device according to the invention along 8-8 in Figs

Figure 9 is a perspective view of an alternative embodiment of a pipe manipulating device in accordance with this invention.

In Fig. 1, a conventional derrick 10 is shown with a suitable device 12 on the bottom 14 of the rig for gripping and manipulating a length of pipe part in order to align it with a turntable, not shown. Such a Device 12 can be any suitable device such as e.g. from American patent 2,416,815 to Calhoun and the American patents 3,371,728 and 3,477,527. Other typical elements of the derrick and rig such as Rat hole, mouse hole, the borehole itself, etc., are not shown in FIG. Although in Fig. 1 schematically the use a derrick 10 is shown on a platform or on the bottom 14 of a drilling rig an..Land, the inventive Device can also be easily attached to any oil derrick, including those on offshore drilling rigs and drilling water vehicles are used. Particularly useful is the inventive device for handling of pipes on board a ship in stormy weather conditions, where the movement of the ship makes manipulating the pipes by hand both dangerous and inefficient.

As can be seen from Fig. 1, the computing platform 16 is at the top Part of the derrick 10 arranged. It is understood that the device according to the invention in a similar manner with a mast-mounted computing platform can be used. The computing platform 16 and the relationship of the device according to the invention

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to the computing platform can be seen more clearly from Fig. 2 , which is only schematic and not necessarily true to size.

As can be seen from the exemplary embodiment in FIG. 2, the computing platform 16 comprises a platform or a small footboard ie for the tower climber. The footboard 18 is expediently centered over the pipe manipulating device 24. The fleohenbuhne comprising the combination of rod rake 17 and footboard 18 is fastened to the derrick 10 and comprises a plurality of fingers 20 which form spaces or recesses 21 for receiving pipe lengths 22. The pipe part lengths 22 are introduced into the rod rake 17 either before being connected to the drill string during the reaming process or after being separated from the drill string.

As apparent from the Ausfahrungsbeispiel in Fig. 2, the bohrturmmontierte device according to the invention is arranged in the ITähe the computing stage 16 24, preferably 16 under the computing stage In the alternative, in Fig. 3 Ausfahrung shown the device 24 according to the invention may conveniently be between two processing tracks 16 are arranged so that the device is able to manipulate pipe section lengths 22 in and out of the two rod racks 17 in an efficient manner.

As can be seen from the exemplary embodiment in FIGS. 2 and 3 , the device 24 comprises a pipe manipulating arm 26 and a rotatable gripping hand 28. When using the device in the embodiment according to J ¹ Ig. 2 and 3, a tower climber standing on a platform or a step 18 only needs to manipulate a pipe rod 22 by hand insofar as he brings a length of pipe to the end of the recess 21 formed by the fingers 20. At this point, the pipe part length 22 can be removed from the gripping hand 28 in the manner shown in FIG. 3

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are grasped and is then by extending the arm 26 and rotating the gripping hand 28 in the proper position for connection brought to the drill string. The following applies when separating a pipe section length from the pipe string for storage in the computing platform an opposite way of working. In such a case it will a hoist and hanger 30 for lifting and positioning the pipe part length 2? before going to the reset line in the Computing platform 16 is gripped by the gripping hand 28.

As can be seen from FIGS. 2 and 3, the pipe manipulating arm 26 is configured for movement along a single predetermined line, preferably a line perpendicular to the length of the fingers and recesses 21 of the rod rake 1? · The pipe gripping hand is rotatably connected to one end of the Rohrmanipalierarmes 26, in order to be able to be rotated at an angle to the line of movement of the arm 26 for receiving and dispensing pipe rods. The pipe gripping hand is preferably capable of a rotation of at least 180 °, which, in conjunction with the preferred movement of the arm perpendicular to the fingers 20, the pipe gripping hand 28 the pipe rod can grasp and release in a direction perpendicular to the line of movement of the arm 26.

The preferred features of the drilling tower-mounted according to the invention Equipment can be seen more clearly from FIG. In the embodiment in Fig. 4 is a tube manipulating telescopic arm preferably fixed at one end and able to extend and retract and is particularly advantageous in the form of a A plurality of equiaxed telescopic elements 31, formed, which in FIG. 4 as equiaxed box-shaped telescopic elements you can see. While moving the arm 26 along a single predetermined line, preferably using a Telescopic arm 26 is achieved, the arm 26 can be used appropriately

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ride on a cart or some other device which is able to convey the desired movement, to be applied.

In the preferred embodiment shown, the telescopic movement of the arm 26 provided by at least one multi-stage telescopic hydraulic cylinder 32, the plurality of equiaxed Telescope el one, th 31 operated to extend and retract. As an alternative to the telescopic hydraulic cylinder for extending and retracting the arm 26, any other mechanical or electrical means capable of effecting the desired telescopic and retracting movement according to this preferred embodiment, Find application. For example, the use of a rack and pinion device may be desirable.

The device 24 is on the derrick 10 with a front mounting plate 34 and a rear mounting plate 36 mounted so that the telescopic arm 26 out and along a single line is retracted. If necessary, a single mounting plate can be used. The hydraulic cylinder (s) 32 is (are) with the cylinder mounting plate 28 and the bracket assembled.

Y ^r ie from the embodiment in Fig. 4, the tube gripping hand can 28 is preferably a rotary movement of 180 ° relative to arm 26 to run. By virtue of this feature of the drilling tower-mounted device according to the invention, the pipe gripping hand is able to grasp and dispense pipe rods in an angular direction, preferably perpendicular to the line of movement of the arm 2b, in a manner which is completely unlike any previously developed device.

The preferred means for causing rotational movement of the pipe gripping hand 28 relative to the arm 26 and grasping and the

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Dispensing of pipe rods is shown in Fig. 5-8. The device for rotating the pipe gripping hand 28 relative to the arm preferably comprises two hydraulic cylinders 44 and 44a acting in opposite directions. The piston rods 46 and 46a of the hydraulic cylinders 44 and 44a have fork couplings 48 and 48a at their ends for connecting the chain running over the sprocket 54 The sprocket 54 is mounted in the brackets 56 and through the rotation of the chain wheel 54, the rotary movement of 180 ° is transmitted via the bearings 70 and 72 to the gripping hand 28. That The relationship of the bearings 70 and 72 to the sprocket 54 can be seen from FIG. Here, too, the rotary movement of the pipe gripping hand 28 is preferably effected hydraulically in the manner described above, but any other hydraulic system can also be used and / or mechanical system that is able to effect the rotary movement described, useful application Find.

In the preferred embodiment of the present invention is the pipe gripping hook 28 in the form of first and second pipe gripping jaws 64 and 66 formed. Again, however, any structural member or element that is capable of grasping tubular rods can be used and enables the desired uptake and release of the pipe rods, expediently in the device according to the invention Find application.

The preferred device for opening and closing the pipe gripping hand 28 when picking up and releasing a corresponding pipe part length 22 is shown in FIGS. 5 and 6. With special Referring to the embodiment depicted in these figures, hydraulic cylinder 58 is mounted on cylinder mount 60 and via the piston rod 61 via the plate 62 and the plates and 63a with the gripping hand 28 to open and close the

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the pipe gripping hand 28 forming first and second pipe gripping jaws 64 and 66 connected. As can be seen from FIGS. 5 and 7 the pipe gripping hand 28 includes a plurality of rollers 68 for Making contact with a pipe part length 22 when the pipe gripping jaws 64 and 66 are engaged therewith.

The derrick-mounted device of the present invention is first Place as a pipe handling device to support the tower climber when transporting pipe rods, collars and the like. Useful. The device is preferably hydraulic operated and, as shown, installed directly next to or under the small running board. All the functions you need for moving the pipe rods into or out of the rack to a location above the center line of the borehole can of the drilling tower-mounted device according to the invention except for moving the pipe rods within the fingers of the rod rake during loading or removal. This is done manually by the tower climbers when using the embodiment according to FIG., But it can also be done automatically done with an alternative embodiment, as explained below. The controls not shown in the drawings with which the individual hydraulic cylinders or other components of the rig-mounted equipment are controlled, can expediently be mounted on the jacket of the tower climber or arranged on the computing platform. In any case, lets the device according to the invention on existing drilling rigs very effective and quick to assemble and assemble.

Fig. 9 shows an alternative embodiment of the rig-mounted device of the present invention. In this alternative version the pipe manipulating arm remains firmly in the derrick at one end and is as in the embodiment according to FIGS. 2, 3 and 4

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extends or retracts along a predetermined line. In the embodiment according to FIG. 9, however, the pipe gripping hand 28 (it arrives the same numerical designation used to say that a similar pipe gripping hand as shown in the embodiment of FIG. 2 and shown in detail in Fig. 6, can also be used for the embodiment according to FIG. 9) attached to the end of an extendable arm 80, which is around the fixed manipulating arm 81 is rotatable. The arm 81 is of a structure similar to that in the embodiment in FIG. 4 shown arm 26 'and comprises telescopic members 83, which by actuation of a multi-stage telescopic cylinder, similar to the designated by 32 in FIG. 4, can be extended or retracted.

Instead of running out into a rotating G-ring, it engages Arm 81 on a rotatable bracket 84, which can be positioned to the extendable arm 80 rait an angle to Manipulating arm 81 to provide. The range is desirable of the extendable arm 80 when fully extended such that the gripping hand 28 is also able to grasp tubular rods, which are furthest away in the boom rack (e.g. in Position 79 in Fig. 2). With the device according to FIG. 9, the manipulation of the pipe rods by hand at the end of the Finger 20 of the rod rake unnecessary.

The bracket 84 is attached to the extendable arm 80. A similar one Chain drive as shown in FIGS. 5, 7 and 8 can be used to rotate the bracket 84. The extendable one Arm ÖO can be rotated by at least 180 ° so that it extends and retracts in both directions perpendicular to the pipe manipulating arm 81 can be. Preferably, the arm 80 is designed to be rotatable up to 240 ° about the bracket 84 in order to be adaptable to enlarge the device.

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The gripping hand 28 is not separated around the end of the extendable Arm SO rotatable, but can be made using a double-acting on cylinder, similar to that shown in Fig. 5, 7 and 9, be opened and closed. The extendable Arn 80 consists made of telescopic members similar to those but typically smaller than that of arm 81.

The device according to FIG. 9 is provided with mounting plates such as 85 in the same way as in the exemplary embodiment according to Fig. attached to the derrick. Arm 81 extends and retracts along a single line while by virtue of the rotatability of the extendable Arm 80 of the gripping hand 28 access to tubular bars is awarded everywhere in the rod rake on both sides of the arm 81. Controls not shown are in the corresponding Way provided for the device according to Fig. 9 and can be jacket-mounted or arranged in a console.

In the preceding discussion of the preferred embodiments of the present invention, it is the use of a telescopic hydraulic cylinder mentioned, for extending and retracting the pipe manipulation arm, to rotate the pipe gripping hand relative to the arm and the further for opening and closing the pipe gripping jaws of the gripping hand. While in the preferred version of the current Invention hydraulic cylinders are used for each of these purposes, such hydraulic cylinders can be used by others appropriate means are replaced which serve the same purposes, including for example electric motors and hydraulic motors together with worm drives, rack and pinion drives or the like. Any of these suitable devices can advantageously be used in Agreement with the device according to the invention use provided the pipe gripping hand is able to grip the lengths of pipe and rotates relative to the arm of the device to become.

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Furthermore, although not shown in the accompanying drawings, any conventional hydraulic system in accordance can be provided with the present invention for actuating the individual used hydraulic cylinders. The construction such one, the special purposes of the device according to the invention Fulfilling hydraulic system can easily be carried out by a person skilled in the art. It only needs to be taken into account in this regard that in the preferred embodiment the two perform the rotary motion the pipe gripping hand must act in opposite directions relative to the arm of the rig-mounted device causing cylinder so that when one of the cylinders of the pair is pressurized, the other is depressurized, thus making the desired one Allow movement of the sprocket to turn.

The rig-mounted device according to the invention has only a minimum of working parts and is in comparison with before developed devices quite simplified. This, in conjunction with the effective and powerful way with the the device according to the invention enables the manipulation of pipe rods in one or from one or more rod racks, creates a substantial improvement over the previously proposed.

While the present invention has been described primarily with reference to the aforementioned particular embodiment- · It is to be understood that the present invention is by no means to be regarded as limited thereto, but rather as far-reaching as any and all similar design options is to be interpreted.

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Claims (15)

7 BR0361 PATENT CLAIMS: 1. Device for mounting on a derrick for manipulation from tube lengths into one or from one or more in their vicinity arranged rod rake (17) »consisting a pipe manipulating arm (26) adapted to move along a single predetermined line and a gripping hand mounted on the end of said arm (26) (28), which is in a substantially horizontal plane for receiving and dispensing pipe sections at an angle to the line of movement of said arm (2b) is designed to be rotatable about said arm. 2. Device according to claim 1, characterized by means (32) for extending and retracting said end of said Armes (26). 3. Device according to claim 2, characterized in that said means (32) for extending and retracting said Rohrmanipulierarmes consist of at least one hydraulic cylinder (32). 4. Device according to one of claims 1 to 3, characterized by a second, at the said end of said Rohrmanipulierarmes (81) rotatably mounted extendable arm (80) for extending and retracting said pipe gripping hand (28) from said end of said Rohrmanipulierarmes (81). 5. Device according to claim 4, characterized in that the The extension and retraction path of said pipe manipulating arm (81) and said second extendable arm (80) is sufficient Length is so that the said pipe gripping hand (28) is capable of a pipe rod anywhere in the said G-estangerechen (17) to take. 609822/0284 7550361 6. Device according to one of claims 1 to 5, characterized by actuating means (44 - 54) for rotating said Pipe gripping hand (28) or said second extendable Arm (80) relative to said Rohrmanirrulierarm (26, 31). 7. Device according to one of claims 1 to 6, characterized in that that said pipe gripping hand (28) or the said second extendable arm (80) around said pipe manipulating arm (26, 81) is rotatable so that said hand (28) tubular part lengths in a direction perpendicular to the Can record and release line of movement of the Rohrmanipulierarmes (26, 81). 8. Device according to one of claims 6 and 7, according to which the said actuating means for rotating said pipe gripping hand (28) or said second extensible Arm (80) consist of a pair of hydraulic cylinders (44, 44_a, 46, 46ja) acting in opposite directions and one of the aforementioned Pipe gripping hand (28) or said second extendable Arm (80) with the said pipe manipulating arm (26, 81) connecting chain drive (52). 9. Device according to claim 8, characterized in that said chain drive comprises a chain (52) and a sprocket (54) with said chain (52) at each end is connected to one of said pair of hydraulic cylinders (44, 44_a, 46, 46ja) and said Sprocket (54) attached to said gripping hand (28) or said second extendable arm (80) is relative to the rotational movement of said G-rifling hand (28) or said extendable arm (80) to effect the said Rohrmanipulierarm (26, 81), whereby by actuating the counteracting 609822/0284 25FJ0361 Hydraulic cylinder (44, 44a, 46, 46_a) said chain (52) said pipe gripping hand (28) or said second extendable hand via said sprocket (54) Arm (80) rotates. 10. Device according to one of claims 1 to 9, characterized characterized in that said pipe gripping hand pipe gripping jaws (64, 66). 11. Device according to claim 10, characterized by actuating means (58 - 63) to open or close the named pipe gripping jaws (64, 66) for gripping or releasing a length of pipe part. 12. Device according to claim 11, characterized in that said actuating means for closing and opening said pipe gripping jaws from a hydraulic cylinder (58) connected to said pipe gripping hand (28) exist in order to open and close said jaws (64, 66) when hydraulic pressure is applied. 13. Device according to one of claims 1 to 12, characterized characterized in that said pipe manipulating arm (26) and / or said second extensible arm (80) extends a plurality of equiaxed telescopic members (31, 83). 14. Device according to one of claims 1 to 13, characterized characterized in that the other end of said Rohrmanipulierarmes (26, 81) is fixed in a derrick (10) is. 15. Device according to one of claims 1 to 14, characterized by at least one computing platform (16) provided Recording of pipe part lengths, said device being arranged in the vicinity of said computing platform (16). 6,99822 / 0284